Phase Shift Keying

Some articles on phase shift keying, phase, keying, phases, shift, shift keying:

Satellite Modem - Features
... Popular modulation types being used for satellite communications Binary phase shift keying (BPSK) Quadrature phase shift keying (QPSK) Orthogonal quadrature phase shift keying (OQPSK) 8PSK Quadrature amplitude ...
Phase-shift Keying
... Phase-shift keying (PSK) is a digital modulation scheme that conveys data by changing, or modulating, the phase of a reference signal (the carrier wave) ... PSK uses a finite number of phases, each assigned a unique pattern of binary digits ... Usually, each phase encodes an equal number of bits ...
Shift - Mathematics and Computing
... Shift key, a key on a computer keyboard Bit shift, a bitwise operator in computing Barrel shifter, a digital circuit that can shift a data word by a specified ...
Quadrature Phase-shift Keying (QPSK) - Variants - Offset QPSK (OQPSK)
... Offset quadrature phase-shift keying (OQPSK) is a variant of phase-shift keying modulation using 4 different values of the phase to transmit ... It is sometimes called Staggered quadrature phase-shift keying (SQPSK) ... Taking four values of the phase (two bits) at a time to construct a QPSK symbol can allow the phase of the signal to jump by as much as 180° at a time ...
Amateur Radio - Modes of Communication - Text and Data
... multi-tone modulation modes such as Multi Tone 63 (MT63) Multiple Frequency-Shift Keying (MFSK) modes such as FSK441, JT6M, JT65, and Olivia MFSK Packet radio (AX25) Automatic Packet Reporting System (APRS ...

Famous quotes containing the words phase and/or shift:

    “This is certainly not the place for a discourse about what festivals are for. Discussions on this theme were plentiful during that phase of preparation and on the whole were fruitless. My experience is that discussion is fruitless. What sets forth and demonstrates is the sight of events in action, is living through these events and understanding them.”
    —Doris Lessing (b. 1919)

    “The frantic search of five-year-olds for friends can thus be seen to forecast the beginnings of a basic shift in the parent-child relationship, a shift which will occur gradually over many long years, and in which a child needs not only the support of child allies engaged in the same struggle but also the understanding of his parents.”
    —Dorothy H. Cohen (20th century)